Package pdfpages Warning: There's something wrong with the entries
(pdfpages) of `addtotoc'. Not all entries were
(pdfpages) processed. Check `addtotoc' on input line 144.
Package pdfpages Warning: There's something wrong with the entries
(pdfpages) of `addtolist'. Not all entries were
(pdfpages) processed. Check `addtolist' on input line 144.

Both versions of your code produce the same warnings. Consider each \IncludeMyPDFThatBugs separately. Comment out all but that one. Note that for ones where it fails, you are trying to add an entry for page 2 in the toc but are only importing page 1. This is (at least part of) what pdfpages is complaining about. Further, some of the places where you use \FirstLanguageSecondLanguage are missing closing braces.
–
cyberSingularityDec 24 '12 at 10:07